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Crystallographic and Magnetic Properties of CoCrPt Thin Films Investigated Using Single-Crystal Perpendicular Magnetic Thin Film Samples

Published online by Cambridge University Press:  01 February 2011

Masaaki Futamoto ,
Kouta Terayama ,
Katsuaki Sato ,
Nobuyuki Inaba  and
Yoshiyuki Hirayama
Masaaki Futamoto
Affiliation:
Central Research Laboratory, Hitachi Ltd. Kokubunji, Tokyo 185-8601, Japan
Kouta Terayama
Affiliation:
Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
Katsuaki Sato
Affiliation:
Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
Nobuyuki Inaba
Affiliation:
Development and Technology Division, Hitachi Maxell Ltd., Tsukuba, Ibaraki, 300-2496
Yoshiyuki Hirayama
Affiliation:
Central Research Laboratory, Hitachi Ltd. Kokubunji, Tokyo 185-8601, Japan
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Abstract

Conditions to prepare good single-crystal CoCrPt magnetic thin film with the easy magnetization axis perpendicular to the film plane were investigated using oxide single-crystal substrates, Al2O3(0001), LaAlO3(0001), mica(0001), SrTiO3(111), and MgO(111). The best CoCrPt(0001) single-crystal thin film was obtained on an Al2O3(0001) substrate employing a non-magnetic CoCrRu underlayer. The crystallographic quality of single-crystal thin film was investigated using X-ray diffraction and high-resolution transmission electron microscopy. Some intrinsic magnetic properties (Hk, Ku) were determined for the single-crystal CoCrxPty thin films for a compositional range of x=17-20at% and y=0-17at%.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 721: Symposia E/J – Texture and Microstructure in Electronic and Magnetic Films – Nanostructural Magnetic Materials for Data Storage , 2002 , E7.1
Copyright
Copyright © Materials Research Society 2002

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